baber/WOPTO huggingface dataset:
Patent GB-665236-A (GB)
Title: Process for the production of fertilisers
IPC: C05B11/06
Filed: 1949-07-21
Abstract: A fertilizer containing dicalcium phosphate and ammonium nitrate is prepared by the action of a mixture of sulphuric and nitric acid, with or without phosphoric acids on raw phosphate in the presence of an added aluminium compound soluble in the reaction medium, followed by treatment of the product with ammonia.  The aluminium compound, preferably finely divided bauxite, sulphate or oxide is added in solid form or dissolved in one or both of the acids preferably in the proportion of 0.25 to 1 per cent by weight of the phosphate used. The product of the acid treatment has less tendency to thickening on the addition of ammonia and subsequent concentration to a 10 per cent or below water content.  A granular product, optionally with the addition of a potassium salt, is formed in the presence of returned fines from previous operations.ALSO:A fertilizer containing dicalcium phosphate and ammonium nitrate is prepared by the action of a mixture of sulphuric and nitric acids with or without phosphoric acid on raw phosphate in the presence of an added aluminium compound, soluble in the reaction medium followed by treatment of the product with ammonia.  The aluminium compound, preferably finely divided bauxite, sulphate or oxide, is added in solid form or dissolved in one or both of the acids preferably in the proportion of 0.25 to 1 per cent by weight of the phosphate used.  The product of the acid treatment has less tendency to thickening on the addition of ammonia and subsequent concentration to a 10 per cent water content.  A granular product, optionally with the addition of a potassium salt is formed in the presence of returned fines from previous operations.
Patent GB-387921-A (GB)
Title: Improvements relating to the voltage regulation of alternators
IPC: H02P9/00
Filed: 1932-07-08
Abstract: 387,921. Dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and ELLEFSEN, O., 18, Redburn Road, Frizinghall, Shipley, Yorkshire. July 8,1932, No. 19356. [Class 35.] Exciting.-A synchronous alternating- current machine has a field winding supplied from a continuouscurrent source independent of the load on the machine and also supplied with rectified current from a half-wave type of rectifier associated with the secondary winding of a transformer, the primary of which is fed by the armature of the machine. In the form shown in Fig. 1, the secondary winding 6 of a current transformer is in series with the field winding 5 supplied from a continuouscurrent source 3a, 3b, and a rectifier 7 of the valve or metal-oxide type is connected across the transformer winding 6. On one set of half-cycles the voltage set up in the winding 6 acts in the same direction as the applied voltage to increase the potential difference across the winding 5, and during the other set of halfcycles, a heavy current circulates in the closed circuit formed by the winding 6 and rectifier 7 without appreciably reducing the potential difference across the winding 5. In a modification, Fig. 2, the field winding is in two parts 5a, 5b connected to slip-rings 9a, 9b, 9c and the rectifier 7 and transformer secondary winding 6 are connected in series across the part 5a which has a lower resistance per turn than the part 5b. If the field winding is to be wound with the same wire throughout, a resistance must be included in the continuous-current circuit ; for this purpose, a resistance element which cannot be cut out may be included in the rheostat 4. In the case of polyphase machines employing a transformer in each phase, the ree ends of the secondary windings are connected together and to the slip-ring 9b, and the free rectifier terminals are connected together and to the slip-ring 9c. The transformer primary winding or windings may be connected across the alternating-current mains 2a, 2b in which case the rectifiers must be reversed if compounding is required so that the rectified impulses oppose the applied exciting voltage.
Patent GB-772387-A (GB)
Title: Improvements in gas shielded or flux shielded arc welding
IPC: B23K9/173
Filed: 1955-07-05
Abstract: 772,387. Welding by fusion. UNION CARBIDE & CARBON CORPORATION. July 5, 1955 [Aug. 10, 1954], No. 19429/55. Class 83 (4). In gas-shielded or submerged arc welding with a consumable electrode, the electrode is a metal strip having a width to thickness ratio of at least 16 to 1 and preferably 32 to 1. The electrode may be of flat, arcuate, V or U- shaped section and of copper or an alloy thereof, mild steel or stainless steel containing 18 per cent Cr, 8 per cent Ni. If a shielding gas is used it may be argon and/or helium. For surfacing, e.g. copper on mild steel, the long side of the electrode is positioned across the feed path. For butt welding the electrode may be positioned along or across the weld, and in the case of circular welds on cylindrical workpieces may be held perpendicularly or tangentially of the workpiece. A submerged arc head 28 for surfacing, shown in Fig. 2, is carried by a self-propelled carriage and has serrated feed rollers 18 which may be profiled to bend the electrode strip to the required section. Spaced parallel runs 40 are made using direct current straight polarity and the intervening spaces are filled using direct current at reverse polarity.
Patent GB-1202493-A (GB)
Title: Process for preventing the adhesion of thin sheets in the course of hot rolling
IPC: C23G1/08
Filed: 1968-04-24
Abstract: 1,202,493. Rolling. BORSODNADASDI LEMEZGYAR. 24 April, 1968 [27 April, 1967], No. 19447/68. Heading B3M. To prevent thin sheets adhering to each other during hot rolling of a pack of such sheets, the sheets are superimposed and immersed in a bath of sulphuric acid before rolling takes place. The bath contains at least 6 gm./l., and preferably 30-60 gm./l. of aluminium sulphate, calcium sulphate, alkali sulphate, or a mixture of two or all three of them.
Patent GB-631937-A (GB)
Title: Improvements in and relating to electrical image reproducing apparatus for use in photography
IPC: G01J1/42
Filed: 1945-07-30
Abstract: 631,937. Viewing by scanning. GENERAL ELECTRIC CO., Ltd., and JESTY, L. C. July 30, 1945, No. 19455. [Class 40 (iii)] Apparatus for determining photographic characteristics to obtain a suitable photograph of an object comprises means to scan the object to derive therefrom picture signals, a circuit for applying signals to a reproducing device to form an image of the object on a viewing screen and calibrated control means for adjusting one or more characteristics of said signals, the adjusted values of said latter characteristics being utilized to derive the appropriate photographic characteristics. As shown, a transparency 10 is scanned by a cathode-ray tube 11 and the signals from a photo-electric cell 12 are amplified at 13 and fed to a cathode-ray tube 14. The average brightness and contrast may be varied by controls 15, 18, the latter preferably operating a valve with a suitable curvilinear characteristic, and the background brilliance may be varied by a control device 16, 17. The corresponding photographic characteristics may be read directly from the settings of the controls 15, 17, 18 or by setting the appropriate values on a calculator. Alternatively, the controls may be coupled to a device indicating the corresponding photographic characteristics. The apparatus may be used in a colour system to derive the appropriate characteristics for the separate colour components of the image.
Patent GB-712957-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N7/01
Filed: 1952-08-01
Abstract: 712,957. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIAL D'USINES A GAZ. Aug. 1, 1952 [Aug. 3, 1951], No. 19485/52. Class 40 (3) In apparatus for transforming from one scanning standard to another, which comprises a cathode-ray tube on the screen of which an image is reconstituted in accordance with a first scanning standard the image being projected on to the target of a storage tube which is scanned in accordance with the second scanning standard, a shutter is provided to mask the light spot from the cathode-ray tube screen so that only the a terglow effect is projected on to the target. This has the effect of preventing components related to the scanning frequency of the cathoderay tube from appearing in the output of the storage tube. The shutter may be arranged to mask an area corresponding to several lines and is moved in synchronism with the image frequency of the cathode-ray tube scan.
Patent GB-1411903-A (GB)
Title: Adjustable furniture
IPC: A61G7/015
Filed: 1973-04-25
Abstract: 1411903 Adjustable beds chairs settees H BERGENWALL 25 April 1973 19570/73 Heading A4J The angle between the head and intermediate sections of a bed having three pivotally interconnected sections 8, 9, 10 may be set at a desired angle which is maintained when the sections are pivoted relative to a base frame 1, 2 by connecting the foot end of the intermediate section 9 to the head section 8 via an adjustable length link 21, 22, to the head section being pivoted about its connection 14 with the base frame by a telescopic power driven unit 43 having one part 44 pivotally connected to the base and the other part 42 pivotally connected via a lug 40 to the adjustable link. The foot section 10 may be connected to the adjustable link by a rod 35 pivotally connected at one end to the foot section 10, slidably received in a sleeve pivotally connected to a depending lug on the adjustable link. The other end 37 of the rod 35 is abutment with the lug 40 which limits the extent to which the foot section pivots downwardly relative to the intermediate section under its own weight or the weight of an occupant.
Patent GB-1200993-A (GB)
Title: Continuous power multicavity magnetron
IPC: H01J23/46
Filed: 1968-04-25
Abstract: 1,200,993. Magnetrons. HUSQVARNA MIKROWELLEN G.m.b.H. 25 April, 1968 [29 April, 1967], No. 19577/68. Heading H1D. The output from a multicavity magnetron is taken from two or more symmetrically disposed cavities. The coupling-out cavities are preferably arranged to be #/4 apart in phase, and may receive the inner conductors of respective coaxial output lines which may themselves be coupled to waveguides (Figs. 5 and 6, not shown).
Patent GB-147630-A (GB)
Title: Grinding or polishing machine for lenses, mirrors and the like
IPC: B24B13/02
Filed: 1920-07-08
Abstract: 147,630. Kuhlmann, F. March 24, 1919, [Convention date]. Lenses and curved surfaces of mirrors, grinding and polishing.-A machine for grinding or polishing lenses, mirrors, &c. comprises a rotating carrier a for the lens &c., on which rests a grinding-shell b adapted to be rotated by the friction between it and the lens, and pivotally but non- rotatably carried by a shaft r journaled in one end of a lever d pivoted at its other end to swing vertically and horizontally; an adjustable spring e holds the grinding-shell in contact with the work. The shaft r carries a gear-wheel c in engagement with a gear-wheel f rotatably mounted on the lever and carrying a crank-pin a connected to a fixed pivot h by a rod i. Rotation of the lens carrier thus causes rotation and reciprocation of the grinding-shell. The shell b, Fig. 5, is connected to the shaft r by a pin n working in a slot w in a housing u, carried by the shaft and formed with a spherical internal face v engaged by a ball w mounted in a cap l secured to the grinding- shell. In one modification, the rod i is replaced by a slot in a fixed member engaged by the crankpin g; and in another, the rod is replaced by a fixed member, the gear wheels being carried by a part telescoping on the lever d.
Patent GB-1365821-A (GB)
Title: Vehicle door particulary for motor vehicles
IPC: B60J5/04
Filed: 1972-04-27
Abstract: 1365821 Vehicle doors FORD MOTOR CO Ltd 27 April 1972 [4 June 1971] 19609/72 Heading B7J A motor vehicle comprises a door having an upper channel 2 for a window pane 9 and a lower channel 3 for an exterior door panel 11, wherein a hollow metal member 1 filled with energy absorbing material 19 extends longitudinally between the front and rear edges of the door and between the window pane and the panel 11, one end of the member 1 having a door hinge 4 attached thereto whilst the other end carries part of the door lock 5 the member 1 carrying window regulator mechanism and forming part of the external surface of the door. The member 1 comprises metal pressings 12, 13 covered with layer of decorative material 4 having recesses 15 to receive the channels 2, 3.
Patent GB-745175-A (GB)
Title: A lubricant composition for wool fibres and method of fulling
IPC: D06M13/52
Filed: 1953-07-16
Abstract: III An acid-stable wool lubricant or softener comprises an emulsion of a polyethylene glycol 325-850 monoester of a fatty acid having 12-22 carbon atoms, an unsatur ated glyceryl triester of a fatty acid having preferably 12-18 carbon atoms and a con densation product of an ethanolamine with the fatty acids of a vegetable oil.  The polyethylene glycol monoester may be the monoester of oleic acid with a polyethy lene glycol of molecular weight 400-450.  The glyceryl ester may be a natural oil, e.g. peanut oil or mustard seed oil, and the ethanolamine condensation product may be the condensation product of diethanol amine with coconut oil fatty acid in equi molecular proportions.  The composition may also include a pale paraffin oil and free oleic acid and may be applied to raw wool or worsted fibres prior to picking, carding and spinning, after the back wash ing operation, or at the first or second pin drafting operation, and may remain on the fibres of the woven, knitted or felted fabric at the fulling stage.  Prior to fulling the fabric is carbonized, in which process sulphuric acid is used for the liquid treat ment.  If the lubricant is removed by a liquid treatment before fulling, the compo sition is reapplied to the fabric immedi ately before fulling or is added directly to the fulling liquor.  The fulling liquor is an aqueous solution of an alkyl ether of a polyethylene glycol 325-850 monoester of a higher fatty acid in which the alkoxy group may have 1 or 2 carbon atoms, e.g. the ethyl ether of polyethylene glycol 350 monolaurate.  After fulling the fabric is scoured and rinsed in fresh water or an aqueous bath containing ammonium hydroxide or sodium carbonate.ALSO:An acid-stable wool lubricant or softener comprises an emulsion of a polyethyleneglycol 325-850 monoester of a fatty acid having 12-22 carbon atoms, an unsaturated glyceryl triester of a higher fatty acid having preferably 12-22 carbon atoms and a condensation product of an ethanolamine with the fatty acids of a vegetable oil.  The polyethylene glycol monoester may be the monoester of oleic acid with a polyethylene glycol of molecular weight 400-450.  The glyceryl ester may be a natural oil, e.g. peanut oil or mustard seed oil, and the ethanolamine condensation product may be the condensation product of diethanolamine with coconut oil fatty acid in equimolecular proportions.  The composition may also include a pale paraffin oil and free oleic acid.
Patent GB-834845-A (GB)
Title: Linoleum compositions
IPC: D06N1/00
Filed: 1957-06-25
Abstract: Monomeric aliphatic hydrocarbon substituted polyalkylol phenols <FORM:0834845/IV (b)/1> wherein R is either CyH2y + 1 or <FORM:0834845/IV (b)/2> and n is 1 or 2; x is 2, 3 or 4; y is an integer from 1 to 30 and z is an integer from 1 to 5, are obtained by reacting a p-aliphatic hydrocarbon substituted phenol with both o-positions free, with a molar excess of formaldehyde or acetaldehyde, the preferred being the methyl, tertiary butyl and octyl phenols. Bis-phenols are also suitable, specified ones being bis-(4-hydroxyphenyl) methane; bis - (2 - hydroxyphenyl) methane; bis-(4-hydroxy-2-methylphenyl) methane; b ,b  - bis - (4 - hydroxy - phenyl) propane; b ,b  - (2,41 - dihydroxydiphenyl) propane; b ,b  - bis - (2 - hydroxyphenyl) propane; b ,b  - bis - (4 - hydroxy - 2 - methyl - phenyl) butane; and b ,b -bis-(2,41-dihydroxyphenyl) pentane.  The mol. ratio of aldehyde is 2 to 1 for the monomethane phenol and 4 to 1 for the bis-phenol.  Reaction is in the presence of a strong alkaline catalyst, which is subsequently neutralized, and the reactants are heated at e.g. 25-40 DEG  C.  Higher temperatures produce some polymer.  The phenol is isolated by acidification and separation of solids or an oily layer.  Alternatively, water can be removed by warming under vacuum.ALSO:A linoleum composition comprises a linoleum cement containing oxidized siccative oil and resin and (relative to the oil and resin) 1 to 15% of a monomeric aliphatic hydrocarbon substituted polyalkylol phenol <FORM:0834845/V/1> wherein R is either cy H2y + 1 or <FORM:0834845/V/2> and n is 1 or 2; x is 2, 3 or 4; y is an integer from 1 to 30 preferably 1 to 8; and z is an integer from 1 to 5.  Fillers specified are weed flour and whiting and the composition is calendered on to a suitable backing.
Patent GB-184449-A (GB)
Title: Improvements in the manufacture of artificial threads and the like of viscose
IPC: D01F2/08
Filed: 1922-07-21
Abstract: A spinning bath for use in the manufacture of artificial threads, films, &c. from viscose, consists of an aqueous solution of the acids obtained by sulphonating the condensation products prepared by reacting with phenols on aldehydes and ketones, especially ketoses, aldoses and more especially the various carbohydrates.  The bath may also contain mineral acids or the salts of mineral acids and the soluble salts of the sulphonated acids.  With these baths, satisfactory results are obtained even with entirely unripened viscose.  In an example, a bath for use in making threads of about 2 deniers contains 10 per cent sulphuric acid, 8 per cent Neradol D, and 10 per cent sodium sulphate; the bath is maintained at 18 DEG C., and a spinning length of 40 centimetres with a normal speed of drawing, is employed.
Patent GB-632735-A (GB)
Title: Child's folding push-chair
IPC: B62B7/02
Filed: 1947-07-25
Abstract: 632,735. Folding push-chairs. LONGONI, H. July 25, 1947, No. 20010. [Class 108 (i)] A child's folding push-chair is characterized by two frames hinged together, one frame being provided with the seat and forming, at its upper end, the handle-bar, whilst the other is provided with wheels and supports the loaded push-chair in the neighbourhood of its centre of gravity. The bearing frame comprises two side members 1, 1 connected at one extremity by the handle-bar 2 and carrying feet 15 at the other, two cross-members 3, 4 and a curved member 5 which projects from,the plane of the frame. A second frame has side members 6, 6 hinged to members 1, 1 at points 8, 8 approximately midway between members 3 and 4, and connected at their lower ends by an axle 7 which carries wheels 9. Said frames are also connected by struts 11 hinged at 10 enabling them to be collapsed, thus folding the frames together. The seat is formed of a pocketshaped piece of matting suspended from members 3 and 5. Two openings 13 allow child's legs to project and rest on member 4. The upper extremity of matting is provided with a stuffed head-rest 14. The seat may be permanently attached to the frame if of leather &c. or detachably attached by buttons or press studs 16 if washable.
Patent GB-410988-A (GB)
Title: Process for the production of sintered bodies from metallic oxides
IPC: C04B33/13
Filed: 1933-07-14
Abstract: A process for preparing sintered bodies from metallic oxides such as oxides of aluminium, beryllium, chromium, manganese, zirconium, magnesium or hafnium which are free from impurities especially clay and silicic acid by casting a paste which has been activated by acid, is characterized in that the concentration of the acid is regulated according to the grain size of the oxide such that a dilute acid is added to fine material and a more concentrated acid is added to coarser ground material.  After moulding, the products are sintered at a temperature above 1600 DEG  C.  In examples (1) 30 grams of hydrochloric acid solution containing 7 grams acid to the litre are added to 70 grams of powder of grain size about 0,01 mm.  (2) 35 grams of hydrochloric acid solution containing 17 grams acid to the litre are added to 65 grams of powder of grain size of 0,015 mm.  (3) 35 grams of hydrochloric acid solution containing 105 grams acid to the litre are added to 65 grams of powder of grain size 0,025 mm.
Patent GB-772473-A (GB)
Title: Means for cooling the cabins of aircraft or other spaces
Inventor: THEED WILLIAM DENIS LEAROYD
IPC: B64F1/36
Filed: 1951-08-25
Abstract: 772,473. Refrigerating. GODFREY (HANWORTH), Ltd., [formerly GODFREY & PARTNERS (HOLDINGS), Ltd., Sir G.] Nov. 25, 1952 [Aug. 25, 1951], No. 20065/51. Class 29 A self-contained air expansion refrigerating apparatus of the kind described in Specification 771,736 [Group III], for cooling the cabins of aircraft while on the ground is mounted on a vehicle and comprises a prime mover, e.g. an internal combustion engine 13, driving an air compressor 15 from which the air passes through an intercooler 20 to an air expander 17, detachable connections 41, 42 being provided for flexible hose 23 delivering the air to the cabin &c. An internal combustion engine 13 mounted on a truck drives through gearing 14 the centrifugal compressor 15 by a shaft 16 which also carries an inward flow expansion turbine 17, air delivered by the compressor passing through a duct 19 and intercooler 20 to the turbine where it expands and is delivered as cold air to the flexible hose pipe 23 connected to the cabin. Ambient air is forced through the cooler 20 by a fan 27 driven through a clutch 40 by a turbine 25 driven by the exhaust gases from the engine 13. Air is drawn by a fan 29 through the radiator 28 of the engine 13 or enters through an inlet valve 31 and passes through a filter 32 and silencer 33 to the compressor 15 and thence through a silencer 34 and the cooler 20 to the turbine. From the compressor a connection 35 with a two-way valve 36 and a restrictor valve 37 enables hot air to be supplied to the cabin. A further branch pipe 38 from the outlet of the cooler 20 enables pressure air at modest temperature to be supplied for testing pressurized cabins. Hinged caps 41, 42, 43 blank off the ducts not required. When hot air is being supplied the clutch 40 is opened to disconnect the fan 27.
Patent GB-336268-A (GB)
Title: Improvements in and relating to the production of dibenzanthrone derivatives
IPC: C09B3/26
Filed: 1929-05-09
Abstract: 336,268. Andersen, I. B., Thomson, R. F., Thomas, J., and Scottish Dyes, Ltd. May 9, 1929. Benzanthrone derivatives. - Dibenzanthrone derivatives are made by alkali fusion of Bz1 : Bz1<1>-dibenzanthronyls substituted by phenoxy, nitro or simple amino groups, but having the 2- position free. In examples, (1) phenoxy-Bz1: Bz1<1>-dibenzanthronyl (obtained by chlorinating the dibenzanthronyl with sulphuryl chloride and treating the product with phenol and caustic potash) is heated with caustic potash, alcohol and xylene; the product dyes cotton in reddish-blue shades from the vat; (2) mononitro-Bz1 :Bz1<1>-dibenzanthronyl (obtained by nitrating the dibenzanthronyl with a mixture of nitric and sulphuric acids) is heated with caustic potash, xylene and methyl alcohol; the product dyes cotton in reddish-blue shades, becoming greenish-blue on oxidation; methylation gives a faster product dyeing in reddish-blue shades; (3) dinitro-Bz1 : Bz1<1>-dibenzanthronyl when similarly treated yields a product dyeing in greenish-black to greenish-grey shades; and (4) monoamino-Bz1 : Bz1<1>-dibenzanthronyl (obtained by reducing the mononitro body of Example 2) is fused with alcoholic potash; the product dyes in bluish-red shades.